Trying to lose weight? Gain weight? Build muscle? If you believe the ads, liquid “meal replacers” or “complete nutritional drinks” like Boost and Ensure are the all-in-one answer. But are they worth their hype?

Even doctors who are generally unenthusiastic about supplements are likely to advise many patients to take calcium to help protect their bones. But an analysis of 11 studies concluded that calcium supplements can increase the risk of heart attacks.